短语词组短语rift -valley basin 裂谷型盆地resequent rift -block valley 瑞顺断块谷rift valley -type sedimentation 裂谷型沉积作用pressure -rift valley 压力裂谷Mid -Atlantic Rift Valley 中大西洋裂谷Yanqing -Zhuolu rift valley 延涿地堑 返回 rift valley